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/*
Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies)
Copyright (C) 2013 Company 100, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "config.h"
#if USE(COORDINATED_GRAPHICS)
#include "CoordinatedLayerTreeHostProxy.h"
#include "CoordinatedDrawingAreaProxy.h"
#include "CoordinatedLayerTreeHostMessages.h"
#include "CoordinatedLayerTreeHostProxyMessages.h"
#include "WebPageProxy.h"
#include "WebProcessProxy.h"
#include <WebCore/CoordinatedGraphicsState.h>
namespace WebKit {
using namespace WebCore;
CoordinatedLayerTreeHostProxy::CoordinatedLayerTreeHostProxy(CoordinatedDrawingAreaProxy* drawingAreaProxy)
: m_drawingAreaProxy(drawingAreaProxy)
, m_scene(adoptRef(new CoordinatedGraphicsScene(this)))
{
m_drawingAreaProxy->page().process().addMessageReceiver(Messages::CoordinatedLayerTreeHostProxy::messageReceiverName(), m_drawingAreaProxy->page().pageID(), *this);
}
CoordinatedLayerTreeHostProxy::~CoordinatedLayerTreeHostProxy()
{
m_drawingAreaProxy->page().process().removeMessageReceiver(Messages::CoordinatedLayerTreeHostProxy::messageReceiverName(), m_drawingAreaProxy->page().pageID());
m_scene->detach();
}
void CoordinatedLayerTreeHostProxy::updateViewport()
{
m_drawingAreaProxy->updateViewport();
}
void CoordinatedLayerTreeHostProxy::dispatchUpdate(std::function<void()> function)
{
m_scene->appendUpdate(WTF::move(function));
}
void CoordinatedLayerTreeHostProxy::commitCoordinatedGraphicsState(const CoordinatedGraphicsState& graphicsState)
{
RefPtr<CoordinatedGraphicsScene> sceneProtector(m_scene);
dispatchUpdate([=] {
sceneProtector->commitSceneState(graphicsState);
});
updateViewport();
#if USE(TILED_BACKING_STORE)
m_drawingAreaProxy->page().didRenderFrame(graphicsState.contentsSize, graphicsState.coveredRect);
#endif
}
void CoordinatedLayerTreeHostProxy::setVisibleContentsRect(const FloatRect& rect, const FloatPoint& trajectoryVector)
{
// Inform the renderer to adjust viewport-fixed layers.
RefPtr<CoordinatedGraphicsScene> sceneProtector(m_scene);
const FloatPoint& scrollPosition = rect.location();
dispatchUpdate([=] {
sceneProtector->setScrollPosition(scrollPosition);
});
if (rect == m_lastSentVisibleRect && trajectoryVector == m_lastSentTrajectoryVector)
return;
m_drawingAreaProxy->page().process().send(Messages::CoordinatedLayerTreeHost::SetVisibleContentsRect(rect, trajectoryVector), m_drawingAreaProxy->page().pageID());
m_lastSentVisibleRect = rect;
m_lastSentTrajectoryVector = trajectoryVector;
}
void CoordinatedLayerTreeHostProxy::renderNextFrame()
{
m_drawingAreaProxy->page().process().send(Messages::CoordinatedLayerTreeHost::RenderNextFrame(), m_drawingAreaProxy->page().pageID());
}
void CoordinatedLayerTreeHostProxy::purgeBackingStores()
{
m_drawingAreaProxy->page().process().send(Messages::CoordinatedLayerTreeHost::PurgeBackingStores(), m_drawingAreaProxy->page().pageID());
}
void CoordinatedLayerTreeHostProxy::commitScrollOffset(uint32_t layerID, const IntSize& offset)
{
m_drawingAreaProxy->page().process().send(Messages::CoordinatedLayerTreeHost::CommitScrollOffset(layerID, offset), m_drawingAreaProxy->page().pageID());
}
}
#endif // USE(COORDINATED_GRAPHICS)
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